| Surname | Forename | Rank | Unit | Born | Resided |
| SWORDS | James | Private | Royal Dublin Fusiliers | Born Dublin | Resided Dublin |
| SYKES | James | Lance Corporal | Royal Dublin Fusiliers | Born Castleknock, Co. Dublin | |
| SYMES | Trevor Eyre | Private | Black Watch (Royal Highlanders) | Born Dublin | |
| SYNNOTT | James | Private | Irish Guards | Born Dublin | |
| SYNNOTT | Thomas | Private | Royal Dublin Fusiliers | Born Dublin | Resided Bray, Co. Wicklow |
| TAAFFE | James | Private | Royal Munster Fusiliers | Born Dublin | Resided Dublin |
| TAAFFE | Patrick | Private | Prince of Wales's Leinster Regiment (Royal Canadians) | Born Dublin | Resided Dublin |
| TAFFE | William | Company Sergeant Major | East Yorkshire Regiment | Born Dun Laoghaire, Dublin | Resided Dun Laoghaire |
| TAGGART | John | Private | Lancashire Fusiliers | Born Dublin | Resided Manchester |
| TAITE | Frederick | Private | Royal Dublin Fusiliers | Born Dun Laoghaire, Co. Dublin | Resided Dun Laoghaire |
| TAITE | John | Sergeant | Royal Dublin Fusiliers | Born Dublin | Resided Dublin |
| TALLANT | Hugh | Stoker | M.F.A. "Ermine" | | |
| TALLON | John | Private | King's (Liverpool Regiment) | Born Dublin | Resided Everton, Liverpool |
| TALLON | Michael | Corporal | Royal Irish Rifles | Born Dublin | |
| TALLON | Patrick | Private | Royal Dublin Fusiliers | Born Finglas, Dublin | |
| TANKARD | John | Sergeant | Alexandra, Princess of Wales's Own (Yorkshire Regiment) | Born Dublin | Resided HettonleSpring |
| TANSEY | John Joseph | Private | Royal Dublin Fusiliers | Born Dublin | |
| TAPLIN | Robert | Private | Royal Army Medical Corps | Born Dublin | |
| TAPLIN | William | Rifleman | Royal Irish Rifles | Born Dublin | |
| TATE | Robert | Private | Royal Dublin Fusiliers | Born Dublin | |
| TAYLOR | Arthur McCutheon | Second Lieutenant | 2nd Battalion, Royal Munster Fusiliers | | |
| TAYLOR | Francis Mortimer | Major | Royal Army Medical Corps | | |
| TAYLOR | Frederick | Private | Royal Dublin Fusiliers | Born Dublin | |
| TAYLOR | George | Private | Cameronians (Scottish Rifles) | Born Dublin | |
| TAYLOR | James | Shoeing Smith | Royal Horse Artillery and Royal Field Artillery | Born Dublin | |
| TAYLOR | James | Private | Connaught Rangers | Born Dublin | |
| TAYLOR | William | Private | Dorsetshire Regiment | Born Dublin | Resided Ranelagh, Co. Dublin |
| TAYLOR | Frederick | Lance Sergeant | Connaught Rangers | Born Mallow, Co. Cork | Resided Dublin |
| TAYLOR | Charles William | Squadron Quartermaster Sergeant | Household Cavalry and Cavalry of the Line (including Yeomanry) | Born StokeonTrent | Resided Dublin |
| TEELING | Joseph | Private | Royal Army Medical Corps | Born Dublin | |
| TEELING | Thomas | Private | Prince of Wales's Leinster Regiment (Royal Canadians) | Born Rathfarnham, Co. Dublin | |
| TEHAN | Christopher Fredrick Edmund | Able Seaman | H.M.S. "Good Hope" | Native of Barnham, Sussex | |
| TELFORD | Henry | Private | Royal Dublin Fusiliers | Born Taney, Dundrum, Co. Dublin | |
| TENNANT | Andrew Alexander | Company Sergeant Major | 13th Battalion, Australian Infantry, Australian Imperial Force | Born in Dublin | |
| TERRETT | Thomas | Lance Corporal | Royal Dublin Fusiliers | Born Dublin | |
| TEXTOR | Henry | Lance Corporal | Royal Munster Fusiliers | Born Hackney, Middx. | Resided Dublin |
| THOMAS | Albert | Private | Connaught Rangers | Born Dublin | Resided Dublin |
| THOMAS | Elwin | Private | Princess Victoria's (Royal Irish Fusiliers) | Born Dublin | |
| THOMAS | Frederick James | Private | Army Cyclist Corps | Born Aran Quay, Dublin | Resided Manchester |
| THOMAS | Matthew | Lance Corporal | Royal Dublin Fusiliers | Born Dublin | |
| THOMAS | Owen Thomas | Sergeant | Royal Horse Artillery | Born Shoeburyness, Essex | |
| THOMPSON | William Lowther | Private | 16th Battalion, Canadian Infantry (Manitoba Regiment) | | |
| THOMPSON | Conway Bennett | Captain | 14th Battalion, Middlesex Regiment | Born in Dublin | |
| THOMPSON | Arthur | Private | Royal Irish Regiment | Born Ballsbridge, Dublin | |
| THOMPSON | Charles Edward | Private | Royal Army Medical Corps | Born Dublin | |
| THOMPSON | John | Private | Royal Dublin Fusiliers | Born Dublin | Resided Dublin |
| THOMPSON | Michael | Private | Royal Dublin Fusiliers | Born Dublin | |
| THOMPSON | Patrick | Private | Royal Dublin Fusiliers | Born Dublin | |
| THOMPSON | Ralph William George | Company Sergeant Major | King's Royal Rifle Corps | Born Dublin | |
| THOMPSON | Richard | Private | Cheshire Regiment | Born Dublin | Resided Rock Ferry, Ches. |